At Trinetix we are looking for a Senior .NET Full Stack Developer to join our team on a long-term project for a US-based client operating in the Healthcare domain. This project is specialized in agile, community-based healthcare delivery, bridging the gap between massive, crowded trauma centers and basic urgent care clinics.

Key Responsibilities

Design, develop, and maintain applications using .NET (C#) in backend and React or Angular in frontend
Write and optimize complex SQL Server queries, stored procedures, and database schemas
Build and consume RESTful APIs and integrate with third-party systems
Develop and support HL7 interfaces for healthcare data exchange between clinical and administrative systems
Collaborate with cross-functional teams (product, QA, stakeholders) to translate requirements into tech solutions
Deploy and manage applications in Microsoft Azure (App Services, Azure SQL, Azure Functions, etc.)
Participate in code reviews, technical planning, and architecture discussions
Troubleshoot production issues and implement performance improvements

Support claims processing workflows and ensure data integrity across the claims lifecycle

Required skills (must)

6+ years of experience in Full Stack Development roles.
Strong proficiency in .NET / C# and at least one frontend framework, React or Angular.




Solid experience with SQL Server, including query optimization and database design.
Hands‑on experience with RESTful API development and third‑party integrations.
Proficient understanding of code versioning tools such as GIT.
Experience with healthcare data standards, in specific with HL7 messaging (ADT, ORM, ORU, etc.) is a must.
Understanding of claims processing concepts (837/835 transactions, adjudication workflows, provider data flows).

Excellent problem‑solving skills, attention to detail, and strong communication skills.

Nice to have skills

Experience with Microsoft Azure cloud services (deployment, monitoring, Dev Ops pipelines).
Exposure to FHIR or other modern healthcare interoperability standards.
Experience working in Agile/Scrum environments.

Knowledge of HIPAA compliance and healthcare data security best practices.

What we offer

Competitive USD monthly salary
Real adaptable working hours
Continuous learning and career growth opportunities
Professional training and English language classes
Comprehensive medical insurance
Mental health support
Specialized benefits program with compensation for fitness activities, hobbies, pet care and more

Inclusive and supportive culture

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📌 .Net Full Stack Developer (Hl7 Is Required) (Buenos Aires)
🏢 Internetwork Expert
📍 Buenos Aires